Electrical connecting member.



J. SACHS.

ELECTRICAL CONNECTING MEMBER. APPLICATION H LED MAR. 13. I1915.

L21 X31. Patented m5211917.

' being equipped with a central end ccntactf 'Wires being electrically connected respecl To all 'whom it may cof/zoem:

' stesa-ens orsi/cn y JOSEPH SACHS, OF HARTFORD, CONNECTC'UT, ASSGNOR, BY MESNE ASSIGNMENTS,

TO THE HART ,8c HEGEMAN MANUFACTUBNG COlvill, OF HARTFORD, CONNECTI- GU'TE, A CORPORATION OF CONNECTICUT. l

ELECTRICAL CONECTING MEMBER.

Specification of Letters Pateizt.

rasantes rei. es, ieri.,

original application sied August se, 1912, seiai no. 'nasca :Divided aus this application alec March 13,

' Y v 1915. semi Ngs-M2393 Be it known that I, JOSEPH Connecticut, 'have invented certainne-W and useful Improvements in Electrical Connecting Members, of yvhichthe following is a specification.

rlhis invention relates to electrical con necting members, the primary object of the invention 'being to provide an article of this character by which access can be readily and easily had to a connector Without separating or disassociatin the parts when in assembled Jepinpanying and forming part of the present specification. In this particular forni of the invention the device presents a plug such as is insertible into and removable from a socket.

Referring to said drawings;

Figure l is an elevation, and,

Fig. 2 is a longitudinal sectional view ci a connecting plug involving my invention.

Lilfe characters refer to like parts'in both views.

An electrical connecting member invclving my invention comprises an insulating portion or body and a. contact shell, one of which surrounds the other and a connector interposed between the two parts, one of them having lan opening to provide access 'to the connector. ln the present case said insulating portion or body constitutes the core of a plug, the contact'shell ysur'rolinding the core and the shell having a lateral'opening by which theA connecting portion of the connector. may be reached to connect a Wire to or disconnect it 'from said connector which preferably is electrically connected with the shell. 4Said connector may be mechanically connected with the shell, Vthus sin'iplifying the construction. This shell constitutes the lateral or side Contact of the plug, the latter SACHS, ac iti- .zen of the United States, residing at Hartford, in the county ofHartford and State of v tively with the end contactgenerally centrally disposed and the shell.

The numeral 2 denotes a core, constituting a suitable body, and made of some insulating material such as porcelain. The core 2 issurrounded between its ends by the metal contact shell 3 Which is externally threaded for practically its entire length to fit the threads o .a socket. (Not show-n.) Sur rounding the contact shell 3 is the ring 4- of suitable insulating material and which is provided with an inset portion 5 snugly tting an annular external groove in the.upperv end of the Contact shell 3. The ring l and shell 3 are, therefore, mechanically con;- nected; they have, however, no positive connection With the core 2. The latter, however, is furnished with' a circular circumferential bead 6 to act as a suitable bearing normally for the ring and the shell.' The lower portion of the core 2 is shown enlarged at 7, said enlarged portion having'a" cone surface 8 uti- `provided with an inturned conical portion l2 cooperative with the cone surface 8. ldhen the core 2 bottomsin a socket, its movement will be arrested, although beyond this point the shell 3 and ring t can advance independently of the core. @n this relative movement the cone poi-.tion or inturned lip l2 will ride against the cone surface 8, thereby,4 expanding the shell 3 to obtain a substantial contact 'with the threaded or equivalentA portion of the shellof a socket. l

The forwarder lower endof the core 2 has a socket or recess 1 3' intersecting Which is the bore or passage 14, the upper end of which opens into 'the top o the core 2. This bore 'or passage is of three diameters, the

will

lies tha shsulsr simsfi at ith@ jlimszion the smaest and inei-nisdiaire' pcfains o1 the bofs or passage 1.4L. Th@ iowa? head #ne grome'; fit against, op of @acess of api-artsy@ i3. "is.eafsf into the giame; l5 is. s. scie'w @the shank sf which sxzens through a peismion or hoi@ in tim sup-iik@ approxinmtely 4conica disk o? Washe 1.7 ssi; into the recess or aperture 13 which ii; wi'il be noted opens into the oiigiiudinsiy si@ tending bei@ 18 in the cme 2. Th@ uppsr end of this hois 8 opens into the bare iii, @ne of ibs wires @f the cabi@ it iszwss the ingest poi-w. of ih@ bwa i4: is passed through 6b.@ hoi@ 18 and Wound amanti the shank of the screw 16, head said sci'ew when the, izit'nsr is sst causimg 'the @up like disk 1.7 t() clamp he wir@ irmiy and substzmbialiy against lie isi-vai' head the gromet 0r interna l# hesdsd 'rivet i5E This disk 01' washei l? acts as s Suitabe centr-ai and csnaca. Enclosed by he .shei

3 is a wir@ lconnector 19,'the 011% of which is suiably fassned as by im@ or .more rivebs 2G '0 said shei. inifsfmiy and h@ pisir ounhifsadsd portion hsof. The boiy of the Wir-s sommato? 19 which can be made suimbiy by s'ftamping fiom sima?, is bowsd iiiwariy, hs inwal' th@ plug. The oskar wir@ @f the @airis is Wrapped. on@ or mmf@ imss airomid die Shank of #Las soi'ew 22 sween 'bhs head @ifi @he iaier ano the @ingame/ms 2 ni-sr which isha screw is sei; so ma?, the head @im clamp said wires firmly sgains Sii@ :amarga-ment 2i.. it will be noticed that the connesso? i9 is disposed in an xtei'm gl'oove or recess 2@ extending iongudinaly ci" the com 2 she upper and of the g'ooifs si' iecess heiiig in of he bom 14 to provide foi* she connsos of one/.01? the Wires with iba connscloi 19. Afina the Wire in quesison has been introducsd im@ the {25mm/*s 2li, iin be cmiecs with the csnnesiborousicie of zh'a siis 3 owing *so iin@ presence the stem opsiiimg or so; 23 in sai@ simili.

a esmas@ she Coffs @Swing sie scripumnmksn in con:

sam@ and being sxpmisibi@ by means such The pmeseii; @plies-sim?. s division my appicaion is Aug-usi i912, ai NQ. 717.942.

"iii/*hai sisim is:

.im siecrics committing msmssi 00m @rising im insuiaing coi-s, s. conlac; sh E sui-'suxiding iie cors, a connector insisssf by 'be shei, said commessi: being mechan caiy connac'fed so ons said. msi'ziom. paris, h@ @Hier having @im the einigem/s1' tc keyso imi 'whs Simili? ih@ coiii'ectoi .33. 'iria-'silly caansczsi wh l'ne 2. in Sissi-riad f men prising as insui. @me s, csic. sum-minding h@ s@ Y si. Gaily and. sieeiiicmiy Csn'sscs. with sheii, @be @sie im a ksywsy t@ rec five. sbs Connect-0s ihei'eby prevsn' mim-iw, tion of @haceis d "the she'.

3. in eiecti connessi msmisi: wmf arising an iifsi'aiing by @mi saints siiei, en@

a connesboi pai's, ons umts havig :m @psa to provide scc-@ss the con-neem?? .isha com tact shei resiiei; mi nsaiis'wf iiody Def ig provided wifail im: 15's- J ing h@ cross secm'xsi einem c- @is sommi; she'ii. .Y

Q Ail eiesisica smecsing msmier Csm pisimg am insuiating com, am eXp/ami assises shs sui-malsain@ sims cima, soimsco missef iii@ sisl, sims han/ing s isuzsm Gpsmig its provisie scsss the connecte@ :mail the com being l'svifsaa wih megsns for expanding ich@ Shah?,

5. An siiecuieai; connecting mumbai." @Gm-- prising su insuaing com, s, ihres/Essi. cmi-Y sacs'she siiiiiounsing the com, bhs wir@ bs ing provided. with means fm expanding sniff. sheii, and a connects? incsssd by the sha@ m sec'iissiy connscfed ihsi'sF/iih, sisi hsving lasmi spelling t@ gpmvis as ssss n *bhs sommets?.

by the shell, said connector being mechanically and electrically connected with the shell, the latter having an opening to prvide access to the connector.

7. An electrical connecting member cemprising an insulating core, ya Contact shell surrounding the core, a. connector inclosed by the shell, said connector being mechani- -cally and electrically connecte with the. 1,0 shell, the latter having an opening to pro- Vide access te tlne connector, the core being recessed to receive the connector to key t0- gethef the core and the shell.

- 1n testimony whereof affix my Signature in presence of two Wltnesses.

L. L. MARKEL, HEATH SUTHERLAND, 

